<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Demo</title>
    <!-- 请勿在项目正式环境中引用该 layui.css 地址 -->
    <link href="assets/lib/layui/css/layui.css" rel="stylesheet">
</head>

<body>
    <ul class="layui-nav layui-bg-green" lay-bar="disabled">
        <li class="layui-nav-item"><a href="">墨绿导航</a></li>
        <li class="layui-nav-item">
            <a href="javascript:;">即时通讯</a>
            <dl class="layui-nav-child">
                <dd><a href="pages/chat/poll.html">轮询</a></dd>
                <dd><a href="">长轮询</a></dd>
                <dd><a href="">websocket</a></dd>
            </dl>
        </li>
        <li class="layui-nav-item"><a href="">菜单3</a></li>
    </ul>

    <!-- 请勿在项目正式环境中引用该 layui.js 地址 -->
    <script src="assets/lib/layui/layui.js"></script>

</body>

</html>